Speaker
Mr
Haiqiong Zhang
(IHEP)
Description
The physical goal of the Jiangmen Underground Neutrino Observatory (JUNO) is to determine the neutrino mass hierarchy by precisely measuring the oscillation spectrum with 3% energy resolution at 1 MeV. Totally 20000 large area 20’’ tubes with high photon detection efficiency will be used to achieve this motivation, including 5000 Hamamatsu dynode PMTs and 15000 NNVT MCP PMTs. The JUNO collaboration has built two systems to measure the performance of these tubes, which has been running since July 2017 and about 4000 tubes have been tested already. The key parameters including detection efficiency, dark count, rise time, fall time and operating HV will be shown in the poster. The PMTs can meet the requirements of JUNO detector.
| Authorship annotation | for the JUNO collaboration |
|---|---|
| Session and Location | Monday Session, Poster Wall #179 (Ballroom) |
| Poster included in proceedings: | yes |
Primary author
Mr
Haiqiong Zhang
(IHEP)
Co-author
Dr
Zhimin wang
(Institute of High Energy phisics, CAS)
